Can you pweetyy pwease help me find this manhwa

So a dumbass!! Thats me >_< forgot a manhwas name that I was supposed to read 2night but I forgot the FUCKINH NAMEM IW AANN DIE and I do not wanna scroll my tiktok history just to find the video (dont ask why I didn't like it I forgot like always tehee:3) so like the tiktok said there's was a gamer boy (RAHH VALORANT CS:GO RAA GAMES) that died from a heart attack and died while playing a game an he was defeating a demon boss (oo wow) and he go reincarnated (what a surprise) and become the demon?? Prince?? Thr boss?? Idk forgot its one of them and he supposedly be idk the demon but does the opposite IM NOT SURE I JUST REALLY WANNA READ THIS MANHWA